Transmission-pedal control



Nov. 10l 1925. 1,560,621

-J. J. swANsoN mmsur'ssxon Palm. connor.

Filed July 50, 1925 2 sheets-sneu 1 efon cf. @wa/7601? .Nove lo. J. J. swANsvON 'rnmsurssron Palm. com-Rox.

Filed July so. 1925 z sheets-sheet 2 mnntoz cfa/m Jaw 'aan Patented Nov. 10, 1925.

1,560,621@ ulnrrtl)L s'rxlvl'ies eairENT oFrlc- JOHN J. l'swmvs'oit' oF Enom, Nnnniis'in.

TnANsMIssIoN-rEnnn con'rnonf- Application med- July' 30,1925. serialA No. 473159:'

pedals.' .Li .Rl'lidf Bi 'mi 'leirffoli'iilliliel the 'constriction 'of the bandsof the plane tary' transmissie@ in, thegusl' .mafnrelf' These bands form no p'ortloi'ry vof my mven-y To'dl'whom 'it may concer/n:

Be-it known that I, Jon-N J. SwANsoN, a citizen.' of the VUnited States, residing atA Elgin, yin the county of Antelope and yState 'of Nebraska, have invented` certain new and useful' Improvements in Transmission-Pedal Controls, of which the following isa specicationgfreference beingdhad yto the accompanying drawings. This invention relates to transmission pedal controls and more particularly to the controlv 'of a low speed pedal of a planetary transmission. 1

An in iportantA object of the invention is to "providea device for 'holding this'pedal lin its low`speedipositionjso constructed that thepe'dal is firmly heldl in its operative positionf regardless of the wear upon the bands of `the transmissiomf permitting changes in "the movement 'of the pedal.-

A yuither'object "of the ,invention is to provide' a device of this lcharacjter which is semiautomatic in itsoperation, `automatically releasing when-itsjuse is no longer dej l'sired by a slight' pressure upon the pedal.

Astill further object of theA invention'is topr'od'uce a device of this character which may .be'verycheapl'y produced 'and readily applied fand' which will be durable and eiiicientinservice These 'and otherobjects I attain by the construction' shown in theV accompanying drawings, wherein for the purpose ofY illustration is shown a preferred embodiment of;

i my invention and wherein:-

Figure 1 is a perspective view showing control apparatus constructedin accordance with` my'y invention applied tothe transmission ofa well' known type-of vehicle;

Figure-2` is a perspective of the mechanism, remov'edyfrom rvthe transmission; 'l

Figure?) is a lperspective of the lock iny the open position; and

Figure 4 is a perspective of the lock show- 'ing the samev in'closed' position.

In' th'e' accompanying drawings, the numeral 10 generally designates'the upper section ofthe case. of a planetary'transmission employedv .in a well' known type. of vehicle. In theV particular type of transmission case illustrated,'thenppersection of the case is provided' centrally with a removable plate 11 held in-positi`on by ysecuringV elements,

hereinafterI to be moreV particularly referred" to. To the left' of this pla te,'theoperating tion and avc'cordinglyi have" no't'been 'illust trained. TheV pedal L, or' pedal that` with 'Jwhich' th'e present invention .'ls

@Oar leetledf la? 'the @affam-glatt which pedal is movedlforwardly to colnstrrctm.B

the' band 'associated'V therewith and as-"th band wears', Athe amount' of.'4 movement V(')fltlie ped'alfisaccordingly increased`-- The Vtra f mission housing', f in` g e'11eral isy supported a band 12,;thepends'f o i'\7vh,icl 1 are arranged @michael-"memes ermite @hie 'een frame-@fthe"ventencwiiieh-iie-eesmie SioniS ample-ree and'. ese'alfed t0 'these' channelmembers by boltsli:

cure 'to the transmission case'- l'prelferablyfm bolt''lll 'securinghe" left hand 'enidfof' the' strap 12 to its 'associatedchannelfel'rnen@ Pvotally secured' to y this bar adj acentl the left hand 'endthereof 'andwas 'atV is stem 21 of a hook 22, the inner' ace'23 of which is s'ubstantially:4 spirali arrngedbfas regard's'thepivot', A'a.nd ,'.i s o'rrneidjwi'th series f: notches- Jdesigned"'to.- receive" the"j front' aoe' of the' pedal levei".l The 'portion orl the bar" 18' upon which tl1e"'hook is 'ari '5 ranged' is Vso po si tio ned" that the hook 'is di'sposed" at'substantially lright -angle's'to the" engagedportionfof' the pedal when inv itsv operative position, it beingVl necessary to bend" the,l bar, 'las' indicated at 25," to provide' for this.' Pivotally vsecfnred .'tof'the down-bent endv17` ofthe br'z'icketf 1 6,"as 'at 2 6, is fthe low'e'r end' of a handlever'f'o which is pivot'allyfconnected oneendof link 2 8, the opposite'end of"which"is vrotatably enga infan'- opening" 29Y formed' in thejhook'. his' hand lever' is'further -connectiedbyza Vten-'. sion"'spring'''witht a securing' bolt' l'15 of the coy'er plate 11` arrange'd` to"the"leftlof theV fleve'r sol that this lever tends 'to moveL at,V

, position.

'A of Figure l.

to swing the hook which is arranged at the left hand side of the pedal L away from the pedal. n

In the use of the device, the pedal L 1s forced forwardly by the foot to its greatest possible extent and the hand lever 27 is then moved in the direction of the arrow This causes the hook to be engaged'with the lever L and prevent its return movement, thus holding the band associated with the lever in its operative rlhe point of engagement of' the lever with the hook will be determined by thecondition 'of this band. If the band be but newly applied, the point of engagement will be at the outer end of' the lever but after the band becomes worn, the engagement will be further and further away Jfrom said outer end. This hook, when in applied position, will serve to hold the low-speed pedal in'its operative position without the necessity of the drivers placing his foot thereon, thus relieving the driver considerably when the machine is operating under heavy loads, ascending high hills or moving in the face oi"Y a high wind. When it is desired to release the pedal, all that is necessary is the application of pressure to the pedal, tending to force the same forwardly and releasing the p edal from its engaged notch. Vfirs soon as this notch isreleased',vthe spring 30 will act to move the hand lever 27 in theV direction opposite to that of the arrow A, causing the hook to be disengaged and the pedal released for its normal operation.

Since the constructionv hereinbefore set forth is obviously capable of a certain range of change and modification without materially departing from the splritoi` my invention, l do not limit myself to such specific structure except as hereinafter claimed.

-l claim :M

l. 'In combination with a transmission including a 'pedal .oscillatable in a vertical plane, the oscillation of the pedal to one extreme of its movement being variable, a spring tending to return the pedal from `the last named position, a latch pivotally supported from the transmission housing to swing in a horizontal plane, said latch having` a pedal engaging face provided with notches for the reception of the pedal, said pedal engaging face `being spirally disposed to the pivot of the latch, means likewise supported from the transmission casing oscillatable in a substantially vertical plane at right angles to the plane of movement of the pedal for shifting said latch into pedal enygaging position and a spring operatively engaged with the latch for moving the latch to position where the pedal is released.

2. In combination ywith a transmission including a pedal oscillatable in a Vvertical plane, the oscillation of the pedal to one the pedal for shifting said latch into pedal i engaging position. Y

ln combination with a transmission including a pedal oscillatable in a Vvertical plane, said transmission having supports and a housing including `a removable plate and securing elements for said plate, a bar held in position upon the transmission by said securing elements and extending longitudinally of the transmission, a second bar secured to one end of the first named bar and its opposite end to one of said supports,

said bar extending adjacent said pedal, a

horizontally swingable hook pivoted to thek bar and having a spirally curved pedal engaging facev provided with notches, ya pivoted lever carried by the first named bar and a link connection between said hook and lever for moving the hook into engagement with the pedal.

4. In combination with a transmission including a pedal oscillatable in a vertical plane, said transmission having supports and a housing including a removable plate and securing elements for said plate, a barV held in position upon the transmission by said securing elements and extending longitudinally of the transmission, a second bar secured to one end of the first named bar and its opposite end to one of said supports, said bar extending adjacent said pedal, a horizontally swingable hook pivoted to the bar and having a spirally curved pedal engaging face provided with notches, a pivoted lever carried by the first named bar, a link connection between said hook and lever for moving the hook into engagement with the pedal and a spring engaged with said lever and constantly urging the same in a direction to release said hook. y

5. In combination with a transmission including a pedal oscillatable in a vertical plane, said transmission having supports and a housing including a removable plate and securing elements tor said plate, a bar held in position upon the transmission by said securing elements and extending longitudinally of the transmission, a second bar secured to one end of the first named bar and its opposite end to one of said support-s, said bar extending adjacent said pedal, a horizontally swingable hook pivoted to the bar and having a spirally curved pedal engaging face provided with notches, a pivoted lever carried by the rst named bar, a link connection between said hook and lever for moving the hook into engagement with the pedal and a spring engaged with said lever and constantly urging the same in a direction to release said hook secured at one end to the lever and at its opposite end to one of the securing elements of said removable plate. v f 'In testimony whereof I hereunto ax my signa-ture.

JOHN J. SWANSON. 

